PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 97

• Manufacturer Part Number: PEB22554
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
FMR2.ALMF = 1
FMR2.FRS1/0 = 11 In the interworking mode the QuadFALC stays in double framing
Signaling Controller Initialization
Initialization of the HDLC controller:
MODE = 0x88
CCR1 = 0x18
IMR0.RME = 0
IMR0.RPF = 0
IMR1.XPR = 0
RTR3.TS16 = 1
XTR3.TS16 = 1
Initialization of the CAS-CC controller:
XSP.CASEN = 1
CCR1.EITS = 0
IMR0.CASC = 0
After the device initialization a software reset should be executed by setting of bits
CMDR.XRES/RRES.
The receiver initiates a new basic- and multiframing research if
more than 914 CRC4 errors have been detected in one second.
format if no multiframe pattern could be found in a time intervall of
400 ms. This is also indicated by a 400 ms interrupt. Additionally
the extended interworking mode (FMR3.EXTIW = 1) will activate
after 400 ms the remote alarm (FMR2.AXRA = 1) and will still
search the multiframing without switching completely to the
double framing. A complete resynchronization in an 8 ms interval
is not initiated.
HDLC Receiver active, no address comparison.
Enable Signaling via TS0-31, Interframe Time Fill with continous
FLAGs.
Unmask interrupts for HDLC processor requests.
Select TS16 for HDLC data reception and transmission.
Send CAS infos stored in the XS1-16 registers.
Enable interrupt with any data change in the RS1-16 registers.
97
Operational Description E1
PEB 22554
09.98